Moreno signed a one-year, $3 million deal in 2014. He's now an unrestricted free agent.

Moreno hasn't been working out at the Dolphins' team facility though Hickey said the organization has been keeping tabs on his rehab and recovery. If Moreno is still available on the free-agent market in the early summer, it's possible the Dolphins to bring him in if they're unable to select a quality runner in the draft.

Dolphins not expected to re-sign Knowshon Moreno

by Larry Hartstein | CBSSports.com

(2/5/15) Dolphins running back Knowshon Moreno played in just three games last season due to an elbow injury and a torn ACL. ESPN.com expects Miami to "find a power back who is more durable" to complement starter Lamar Miller in 2015.

Moreno, 27, is scheduled to hit free agency. He played well when he was healthy, rushing 31 times for 148 yards (4.8 ypc) and a touchdown.

Dolphins RB Knowshon Moreno out for season (torn ACL)

by Michael Hurcomb | CBSSports.com

(10/14/14) The Dolphins placed running back Knowshon Moreno on season-ending injured reserve because of a torn ACL, the club announced Tuesday.

After leaving the Broncos for a one-year deal in Miami, Moreno struggled to make an impact and with injuries, also suffering a elbow issues as well. He played in only three games and in his final two rushed for only 14 yards on seven carries.

Lamar Miller will continue to be the Dolphins' primary back -- he leads Miami with 330 rushing yards -- with Daniel Thomas and Damien Williams also sharing carries.

Dolphins' Knowshon Moreno takes back seat to Lamar Miller Week 6

by Igor Mello | CBSSports.com

(10/12/14) Dolphins running back Knowshon Moreno returned to action but took a back seat to his running mate Lamar Miller in a Week 6 defeat to the Packers on Sunday.

Moreno got stuffed by Green Bay's defense on a fourth and goal from the 1-yard like in the opening quarter, a costly result considering Miami lost by three points. Moreno rotated series with Miller early on, but only received two touches after halftime. He took six carries for 10 yards, averaging 1.7 yards per game. He also caught one pass for a again of 8 yards in a 27-24.

The Dolphins will travel to Chicago to face the Bears in Week 7.

Dolphins' Knowshon Moreno cleared for Green Bay game

by Igor Mello | CBSSports.com

(10/12/14) As expected, Dolphins running back Knowshon Moreno was listed as probable for Week 6 against Green Bay, despite nursing an elbow injury. It'll be Moreno's first game back since the second week of the season. Lamar Miller is still expected to get the start.

03/04/2015 14:52Fantasy Free Agent Fun
Jamey Eisenberg takes a look at some possible destinations for 20 free agents that could impact their Fantasy value for 2015.

Knowshon Moreno left the Broncos as a free agent to sign with the Dolphins, and he'll be looking to prove that his career-best performance in 2013 wasn't a fluke. Moreno set career highs in rushing yards (1,038), rushing touchdowns (10), catches (60) and receiving yards (548). He also tied his career high in receiving touchdowns with three, and he was the No. 5 Fantasy running back in standard leagues. With the Dolphins, Moreno is expected to start, but he could lose some playing time to Lamar Miller. The biggest problem for Moreno will be trying to prove that playing with Peyton Manning made his career. Because of Manning, Moreno never saw a lot of defenders near the line of scrimmage, which is something that is likely to change. His receiving stats will also decline, and Moreno is more of a flex option this season. We wouldn't draft Moreno before Round 5 or 6 in the majority of leagues, and he should be considered a No. 3 running back. The Dolphins should improve their offensive line from last season, and Miller shouldn't be too much of a hindrance. But Moreno's Fantasy value takes a hit going from Denver to Miami.
(Updated 5/12/14)